
	// <part 1>
	/* 
	 * 默认转换实现函数，如果需要其他功能，需自行扩展
	 * 参数：
	 *      tableID : HTML中Table对象id属性值
	 * 详细用法参见以下 TableToExcel 对象定义  
	 */
	function saveAsExcel(tableID){
	 var tb = new TableToExcel(tableID);
	     tb.setFontStyle("Courier New");
	     tb.setFontSize(10);
	     tb.setTableBorder(2);
	     tb.setColumnWidth(7);
	     tb.isLineWrap(true);
	     tb.getExcelFile();
	}

	/*
	 *  功能：HTML中Table对象转换为Excel通用对象.
	 *  作者：Jeva
	 *  时间：2006-08-09
	 *  参数：tableID  HTML中Table对象的ID属性值
	 *  说明：
	 *       能适应复杂的HTML中Table对象的自动转换，能够自动根据行列扩展信息
	 *       合并Excel中的单元格，客户端需要安装有Excel
	 *       详细的属性、方法引用说明参见：Excel的Microsoft Excel Visual Basic参考
	 *  示范：
	 *       var tb = new TableToExcel('demoTable');
	 *           tb.setFontStyle("Courier New");
	 *           tb.setFontSize(10);     //推荐取值10
	 *           tb.setFontColor(6);     //一般情况不用设置
	 *           tb.setBackGround(4);    //一般情况不用设置
	 *           tb.setTableBorder(2);   //推荐取值2
	 *           tb.setColumnWidth(10);  //推荐取值10
	 *           tb.isLineWrap(false);
	 *           tb.isAutoFit(true);
	 *    
	 *    tb.getExcelFile();
	 *   如果设置了单元格自适应，则设置单元格宽度无效
	 *  版本：1.0
	 *  BUG提交：QQ:18234348 或者 http://jeva.bokee.com
	 */
	function TableToExcel(tableID) {
	    this.tableBorder = -1;    //边框类型，-1没有边框 可取1/2/3/4
	    this.backGround = 0;      //背景颜色：白色   可取调色板中的颜色编号 1/2/3/4....
	    this.fontColor = 1;      //字体颜色：黑色
	    this.fontSize = 10;      //字体大小
	    this.fontStyle = "宋体"; //字体类型
	    this.rowHeight = -1;     //行高
	    this.columnWidth = -1;   //列宽
	    this.lineWrap = true;    //是否自动换行
	    this.textAlign = -4108; //内容对齐方式   默认为居中
	    this.autoFit = false;   //是否自适应宽度
	    this.tableID = tableID; 
	}

	TableToExcel.prototype.setTableBorder = function (excelBorder) {
	    this.tableBorder = excelBorder ;
	};

	TableToExcel.prototype.setBackGround = function (excelColor) {
	    this.backGround = excelColor;
	};

	TableToExcel.prototype.setFontColor = function (excelColor) {
	    this.fontColor = excelColor;
	};

	TableToExcel.prototype.setFontSize = function (excelFontSize) {
	    this.fontSize = excelFontSize;
	};

	TableToExcel.prototype.setFontStyle = function (excelFont) {
	    this.fontStyle = excelFont;
	};

	TableToExcel.prototype.setRowHeight = function (excelRowHeight) {
	    this.rowHeight = excelRowHeight;
	};

	TableToExcel.prototype.setColumnWidth = function (excelColumnWidth) {
	    this.columnWidth = excelColumnWidth;
	};

	TableToExcel.prototype.isLineWrap = function (lineWrap) {
	    if (lineWrap == false || lineWrap == true) {
	        this.lineWrap = lineWrap;
	    }
	};

	TableToExcel.prototype.setTextAlign = function (textAlign) {
	    this.textAlign = textAlign;
	};

	TableToExcel.prototype.isAutoFit = function(autoFit){
	 if(autoFit == true || autoFit == false)
	  this.autoFit = autoFit ;
	};
	
	//<part 2>
	//文件转换主函数
	TableToExcel.prototype.getExcelFile = function () {
	    var jXls, myWorkbook, myWorksheet, myHTMLTableCell, myExcelCell, myExcelCell2;
	    var myCellColSpan, myCellRowSpan;

	    try {
	        jXls = new ActiveXObject('Excel.Application');
	    }
	    catch (e) {
	        alert("无法启动Excel!\n\n" + e.message + 
	           "\n\n如果您确信您的电脑中已经安装了Excel，"+
	           "那么请调整IE的安全级别(安全级 - 低)。\n\n具体操作：\n\n"+
	           "工具 → Internet选项 → 安全 → 拉动安全级至(低)");
	        return false;
	    }

	    jXls.Visible = true;
	    myWorkbook = jXls.Workbooks.Add();
	    jXls.DisplayAlerts = false;
	    myWorkbook.Worksheets(3).Delete();
	    myWorkbook.Worksheets(2).Delete();
	    jXls.DisplayAlerts = true;
	    myWorksheet = myWorkbook.ActiveSheet;
	    
	    var  readRow = 0,  readCol = 0;
	    var totalRow = 0, totalCol = 0;
	    var   tabNum = 0;
	    
	//设置行高、列宽
	    if(this.columnWidth != -1)
	     myWorksheet.Columns.ColumnWidth = this.columnWidth;
	    else
	     myWorksheet.Columns.ColumnWidth = 7;
	    if(this.rowHeight != -1)
	     myWorksheet.Rows.RowHeight = this.rowHeight ;

	//搜索需要转换的Table对象，获取对应行、列数
	    var obj = document.all.tags("table");
	    for (x = 0; x < obj.length; x++) {
	        if (obj[x].id == this.tableID) {
	            tabNum = x;
	            totalRow = obj[x].rows.length;
	            for (i = 0; i < obj[x].rows[0].cells.length; i++) {
	                myHTMLTableCell = obj[x].rows(0).cells(i);
	                myCellColSpan = myHTMLTableCell.colSpan;
	                totalCol = totalCol + myCellColSpan;
	            }
	        }
	    }

	//开始构件模拟表格
	    var excelTable = new Array();
	    for (i = 0; i <= totalRow; i++) {
	        excelTable[i] = new Array();
	        for (t = 0; t <= totalCol; t++) {
	            excelTable[i][t] = false;
	        }
	    }
	    
	//开始转换表格    
	    for (z = 0; z < obj[tabNum].rows.length; z++) {
	        readRow = z + 1;
	        readCol = 0;
	        for (c = 0; c < obj[tabNum].rows(z).cells.length; c++) {
	            myHTMLTableCell = obj[tabNum].rows(z).cells(c);
	            myCellColSpan = myHTMLTableCell.colSpan;
	            myCellRowSpan = myHTMLTableCell.rowSpan;
	            for (y = 1; y <= totalCol; y++) {
	                if (excelTable[readRow][y] == false) {
	                    readCol = y;
	                    break;
	                }
	            }
	            if (myCellColSpan * myCellRowSpan > 1) {
	                myExcelCell = myWorksheet.Cells(readRow, readCol);
	                myExcelCell2 = myWorksheet.Cells(readRow + myCellRowSpan - 1, readCol + myCellColSpan - 1);
	                myWorksheet.Range(myExcelCell, myExcelCell2).Merge();
	                myExcelCell.HorizontalAlignment = this.textAlign;
	                myExcelCell.Font.Size = this.fontSize;
	                myExcelCell.Font.Name = this.fontStyle;
	                myExcelCell.wrapText = this.lineWrap;
	                myExcelCell.Interior.ColorIndex = this.backGround;
	                myExcelCell.Font.ColorIndex = this.fontColor;
	                if(this.tableBorder != -1){
	                 myWorksheet.Range(myExcelCell, myExcelCell2).Borders(1).Weight = this.tableBorder ;
	                 myWorksheet.Range(myExcelCell, myExcelCell2).Borders(2).Weight = this.tableBorder ;
	                 myWorksheet.Range(myExcelCell, myExcelCell2).Borders(3).Weight = this.tableBorder ;
	                 myWorksheet.Range(myExcelCell, myExcelCell2).Borders(4).Weight = this.tableBorder ;
	                }

	                myExcelCell.Value = myHTMLTableCell.innerText;
	                for (row = readRow; row <= myCellRowSpan + readRow - 1; row++) {
	                    for (col = readCol; col <= myCellColSpan + readCol - 1; col++) {
	                        excelTable[row][col] = true;
	                    }
	                }
	                
	                readCol = readCol + myCellColSpan;
	            } else {
	            	try{
	                myExcelCell = myWorksheet.Cells(readRow, readCol);
	            	}catch(e){alert(e.message);}
	                myExcelCell.Value = myHTMLTableCell.innerText;
	                myExcelCell.HorizontalAlignment = this.textAlign;
	                myExcelCell.Font.Size = this.fontSize;
	                myExcelCell.Font.Name = this.fontStyle;
	                myExcelCell.wrapText = this.lineWrap;
	                myExcelCell.Interior.ColorIndex = this.backGround;
	                myExcelCell.Font.ColorIndex = this.fontColor;
	                if(this.tableBorder != -1){
	                 myExcelCell.Borders(1).Weight = this.tableBorder ;
	                 myExcelCell.Borders(2).Weight = this.tableBorder ;
	                 myExcelCell.Borders(3).Weight = this.tableBorder ;
	                 myExcelCell.Borders(4).Weight = this.tableBorder ;
	                }
	                excelTable[readRow][readCol] = true;
	                readCol = readCol + 1;
	            }
	        }
	    }
	    if(this.autoFit == true)
	     myWorksheet.Columns.AutoFit;
	     
	    jXls.UserControl = true;
	    jXls = null;
	    myWorkbook = null;
	    myWorksheet = null;
	};